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S21800 Stainless Steel vs. SAE-AISI M10 Steel

Both S21800 stainless steel and SAE-AISI M10 steel are iron alloys. They have 67% of their average alloy composition in common. There are 20 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is S21800 stainless steel and the bottom bar is SAE-AISI M10 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 75
76
Tensile Strength: Ultimate (UTS), MPa 740
740 to 2170

Thermal Properties

Latent Heat of Fusion, J/g 340
270
Melting Completion (Liquidus), °C 1360
1520
Melting Onset (Solidus), °C 1310
1470
Specific Heat Capacity, J/kg-K 500
460
Thermal Expansion, µm/m-K 16
12

Otherwise Unclassified Properties

Base Metal Price, % relative 15
14
Density, g/cm3 7.5
7.9
Embodied Carbon, kg CO2/kg material 3.1
8.3
Embodied Energy, MJ/kg 45
120
Embodied Water, L/kg 150
100

Common Calculations

PREN (Pitting Resistance) 19
31
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 26
24
Strength to Weight: Axial, points 27
26 to 76
Strength to Weight: Bending, points 24
23 to 47
Thermal Shock Resistance, points 17
23 to 68

Alloy Composition

Carbon (C), % 0 to 0.1
0.84 to 1.1
Chromium (Cr), % 16 to 18
3.8 to 4.5
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 59.1 to 65.4
82.3 to 85.6
Manganese (Mn), % 7.0 to 9.0
0.1 to 0.4
Molybdenum (Mo), % 0
7.8 to 8.5
Nickel (Ni), % 8.0 to 9.0
0 to 0.3
Nitrogen (N), % 0.080 to 0.18
0
Phosphorus (P), % 0 to 0.060
0 to 0.030
Silicon (Si), % 3.5 to 4.5
0.2 to 0.45
Sulfur (S), % 0 to 0.030
0 to 0.030
Vanadium (V), % 0
1.8 to 2.2